Win Lego - Guess how many heads in the jar!

Guess how many Lego heads are in the jar, and if you are first to get it exactly right, you will get to choose one of the following prizes:

LEGO Super Heroes Rhino Face-Off By The Mine 76099
LEGO City Ambulance Helicopter 60179
LEGO City 60107 Fire Ladder Truck

Taking part in this Lego giveaway is easy - watch the video and guess how many Lego heads are in the jar. Put your guess in a comment.
Please DO NOT EDIT YOUR COMMENT. Every contest I do, a lot of people edit their comments.
The reason I ask you not to edit your comment is because the winner is the first person to get the correct answer.
If you were allowed to edit your comment, you could just comment "First" as soon as the video is uploaded, then look at everyone else's comments to pick one that looks like the right answer, then edit your comment. It also messes with my head if people's comments keep changing, because I go through them in order, from the first one to the last, replying to them and checking to see who got it right.
If the comments change after I've looked at them, I've got no hope of knowing who has won!

Here are the full rules:

1. To enter, watch the clip of the jar full of Lego heads, and guess how many heads are in the jar. Write your guess in a comment on this video.
2. Do not make more than one guess. E.g. don't say "either 21 or 22". If you do, your guess may not be counted, or I may just take the number listed to be your guess.
3. Only one guess is allowed per channel.
4. If you win and you don't want the prize or you are not allowed to claim the prize, you can request a shout-out instead of the prize.
5. To win you have to get the answer exactly right. Only the first person to guess the right answer will win. There is no second prize.
6. If you edit your comment, your guess will not be counted.
7. You are allowed to change your guess, but if you want to do that you must delete the comment which contains your original guess and then add your new guess as a new comment.
8. Gold Puffin Lego Animation are the judge of who has won the competition and their say is final.
9. You do not need to be a subscriber of Gold Puffin Lego Animation to enter this competition.
10. The competition closes at the end of Friday 12th October 2018, which means the last time that you can enter is 11:59pm British Summer Time (UK time) on 12th October 2018.
12. Anyone can enter, and the prize will be posted to the winner wherever they live in the world.
13. The winner should claim their prize within 14 days of the winner being announced. If they do not claim their prize after 14 days, it may be given to another contestant or used as a prize in another giveaway.

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Intro sounds: synth by snikpohneb (http://freesound.org/people/snikpohneb/) and puffin sounds by Ainslie Wood (https://www.youtube.com/channel/UCpa8C9bn__98YERSrlI51IQ)